Mineralogy Database

Poudretteite Mineral Data

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General Poudretteite Information

Help on Chemical  Formula: Chemical Formula: KNa2B3Si12O30
Help on Composition: Composition: Molecular Weight = 912.90 gm
   Potassium   4.28 %  K     5.16 % K2O
   Sodium      5.04 %  Na    6.79 % Na2O
   Silicon    36.92 %  Si   78.98 % SiO2
   Boron       1.18 %  B     3.81 % B2O3
   Oxygen     52.58 %  O
             ______        ______ 
             100.00 %       94.74 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KNa2BSi12O30
Help on Environment: Environment: In marble xenoliths within nepheline syenite breccias in an intrusive alkalic gabbro-syenite complex.
Help on IMA Status: IMA Status: Approved IMA 1987
Help on Locality: Locality: From Mont Saint-Hilaire, Quebec, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the Poudrette family, operators of the quarry where type material was discovered.
Help on Name Pronunciation: Name Pronunciation: Poudretteite + Pronunciation Say POUDRETTEITE
Help on Synonym: Synonym: IMA1986-028